PPGI iyishidi steel elinombala elinokwakhiwa kwe-GI (Iron e-Galvanized) njengemathiriyeli eyisisekelo, kanti i-PPGL iyishidi steel elinombala elinokwakhiwa kwe-GL (Galvalume) njengemathiriyeli eyisisekelo. Izifutho ezisebenziselwa phezulu (njengokuthi i-polyester, i-silicon-modified polyester, kanye ne-fluorocarbon) zinikeza ukumelana okuhle nezimo zezulu, kuvumela le mathiriyeli ukuba ibekezelele imisebe ye-UV, imvula ye-asidi, nezinye izinto ezisemvelweni, kuqinisekisa ukugcina umbala nokuqhakaza isikhathi eside.

I-PPGI isebenzisa insimbi eyinsimbi njengezinto eziyisisekelo, nezingqimba ze-zinc ezinikeza ukuvikelwa okuhle kokumelana nokugqwala, okwenza kube kufanelekile ezindaweni ezijwayelekile zokugqwala. I-PPGL, ngakolunye uhlangothi, isebenzisa insimbi efakwe i-aluminium-zinc njengezinto eziyisisekelo, futhi ingqimba ye-aluminium-zinc alloy (55% aluminium, 43.4% zinc, 1.6% silicon) inikeza ukumelana okungcono nokugqwala, ikakhulukazi ikhuluma kahle ezindaweni ezinzima.

Zonke i-PPGI ne-PPGL zikhombisa ukusebenza kahle kokucubungula, okwenza zifaneleke ekwenzeni izimo eziyinkimbinkimbi ngokushaya, ukujolisa, nokusika. Ukunamathela okuqinile kwezifutho kuvimba ukuhucululwa ngesikhathi sokucubungula. Ngaphezu kwalokho, inqubo yokupenda ngaphambi kwepende yehlisa isidingo sokupenda endaweni, yehlisa ukukhishwa kwezinto eziphilayo eziguquguqukayo (i-VOCs) futhi ihlangabezana nezidingo zemvelo.